I was wondering if it is possible to integrate this prog in phoco, because i am stille have trouble using the pc as headset, the caller hear his echo! but i have noticed tha if i use messenger to make a audio conversation with exact the same speakers, there is no echo. this is because messenger uses AEC software (Acoustic Echo Canceling) I found this RTC client, but i dont understand a hole lot of this xml thing... Is there any help?